Signaling transmitting and receiving methods, device, network-side device, terminal, and storage medium

ABSTRACT

Provided is signaling transmitting and receiving methods, device, network-side device, terminal and storage medium. The signaling transmitting method includes: determining a first parameter set and/or a second parameter set for N resource groups; and transmitting an indication signaling, the indication signaling carries indication information for indicating the first parameter set and/or the second parameter set. The signaling receiving method includes: receiving an indication signaling transmitted by a network-side device. The indication signaling carries indication information for indicating a first parameter set and/or a second parameter set determined by the network-side device for N resource groups. The first parameter set is a Physical Downlink Shared Channel Resource Element (PDSCH RE) mapping set. The second parameter set is a Quasi-Co-Location (QCL) parameter set. N is a positive integer greater than 1.

CROSS-REFERENCE TO RELATED APPLICATIONS

This is a National Stage Application, filed under 35 U.S.C. 371, ofInternational Patent Application No. PCT/CN2017/080146, filed on Apr.11, 2017, which claims priority to Chinese Patent Application No.201610289895.4, filed on Apr. 29, 2016, contents of both of which areincorporated herein by reference in their entireties.

TECHNICAL FIELD

The present disclosure relates to the field of communications and, inparticular, to signaling transmitting and receiving methods, device,network-side device, terminal and storage medium.

BACKGROUND

In a Long Term Evolution (LTE)/Long Term Evolution-Advanced (LTE-A)system, when multi-point transmission is supported, since a base stationfor data transmission is transparent to a terminal and can bedynamically switched, the terminal cannot accurately know that receiveddata is transmitted by which base station. Therefore, the definition ofa Quasi-Co-Location (QCL) indicator and a notification signaling areintroduced.

The QCL indicator represents that a Channel State Information ReferenceSignal (CSI-RS) transmitted and notified by current data and a CSI-RStransmitted and notified by a Ue specific de-Modulation Reference Signalhave a quasi-co-location relationship. The CSI-RSs transmitted andnotified by these two have approximate the same large-scalecharacteristics of the channel, such as a delay spread, Doppler spread,Doppler shift and average delay. The QCL may be understood as thecurrent data and the DMRS being approximately transmitted by one basestation.

After obtaining the CSI-RS or a Cell specific Reference Signal (CRS)which has a quasi-co-location relationship with the DMRS, the terminalcan obtain, according to the obtained reference signal, some statisticalcharacteristic parameters of the channel from the base station to theterminal in advance in the course of channel demodulation. Therefore,the terminal can effectively use these statistical characteristicparameters to improve the estimation accuracy with a demodulation pilotand the performance of a receiver, and effectively suppress noises, andalso may apply the statistical characteristic parameters to differentestimation algorithms and receiving algorithms.

In addition, when the base station emits signals, the non-ideal devicescause frequency offset and time offset errors. The terminal may obtainestimate values of the frequency offset and time offset according to theCSI-RS or CRS measurement, and transmit the estimation values of thefrequency offset and time offset to facilitate the calibration performedby the base station. It is to be noted that only reference signalstransmitted by a same base station can accurately measure thesestatistical characteristics of the channel. That is, the measurement ofthese statistical characteristic parameters is generally directed to thereference signals transmitted by the same base station. So the terminalneeds the QCL indicator to know which CSI-RS or CRS has thequasi-co-location relationship with the DMRS.

In 3GPP TS 36.213 standards, the QCL indicator is jointly notified withrelevant information of a Physical Downlink Shared Channel ResourceElement mapping. Table 1 provides meanings of various statuses of aPhysical Downlink Shared Channel Resource Element mapping andQuasi-Co-Location Indicator signaling.

TABLE 1 Value of ‘PDSCH RE Mapping and Quasi-Co-Location Indicator’field Description ‘00’ Parameter set 1 configured by higher layers ‘01’Parameter set 2 configured by higher layers ‘10’ Parameter set 3configured by higher layers ‘11’ Parameter set 4 configured by higherlayers

As shown in table 1, in the PDSCH RE Mapping and Quasi-Co-LocationIndicator field, a physical layer Downlink Control Information of 2 bitis used for dynamically indicating four parameter sets. Each setincludes a group of parameters which includes the following multipletypes of information:

-   -   configuration parameter information of the CRS, including the        number of ports and a frequency domain shift parameter;    -   subframe configuration parameter information of a Multimedia        Broadcast multicast service Single Frequency Network (MBSFN);    -   parameter configuration information of a Zero Power (ZP) CSI-RS;    -   configuration information of a data channel starting symbol        parameter; and    -   information of a quasi-co-location Non-Zero Power (NZP) CSI-RS.

In a process of the base station transmitting data to the terminal, thebase station, which transmits the data, may be switched dynamically. TheRE mapping and the changing of the quasi-co-location of the referencesignal and the data transmission can achieved by dynamically indicatingthe above-mentioned information through the signaling of 2 bits.

With the development of technologies, coordinated multi-pointtransmission has become an important technology to improve the spectrumefficiency of the system. The joint transmission (JT) in the coordinatedmulti-point transmission has also been developed and enhanced. In therelated art, all codeword streams of multiple transmission points of thejoint transmission for the same terminal, all quasi-co-locationindicators and/or resource element mappings of all time-frequencyresources within a whole system bandwidth are the same. FIG. 1 is aschematic diagram illustrating that two transmission nodes performs ajoint transmission for one user in the related art. As shown in FIG. 1,the two transmission nodes TP1 and TP2 transmit data to the user on thesame time-frequency resources.

In the related art, the DCI of data 1 transmitted by the TP1 to the userand the DCI of data 2 transmitted by the TP2 to the user are the sameand have the same value of the quasi-co-location indicator and PDSCH REMapping notification signaling, which indicate the same QCL parameterconfiguration set and PDSCH RE mapping relationship and enable toperform data de-modulation in a same DMRS estimation channel. This willnot well reflect channel conditions of the data transmitted by differentTPs. The channel measurement performed on the same CSI-RS/CRS alsocannot well reflect the channel conditions of the different TPs, therebycausing a performance degradation. On the other hand, especially in aheterogeneous network, the TP1 and TP2 may have different systembandwidths, which only partially overlap with each other. In the relatedart, the same Quasi-co-location parameters or PDSCH RE mappingparameters configured on different time-frequency resources may causedifficulty in PDSCH RE mapping. Similarly, the same QCL parameters mayalso cause performance degradation. Also, in the same applies to othertechnologies of the coordinated multi-point transmission, includingCoordinated Scheduling/Beamforming (CS/CB), Dynamic point selection(DPS) and Dynamic cell selection (DCS).

SUMMARY

Embodiments of the present disclosure provide signaling transmitting andreceiving methods, device, network-side device, terminal and storagemedium to improve the performance in joint transmission of coordinatedmulti-point transmission caused by the Physical Downlink Shared ChannelResource Element and/or Quasi-Co-Location Indicator in the related art.

A signaling transmitting method is provided according to an embodimentof the present disclosure. The method includes: determining a firstparameter set and/or a second parameter set for N resource groups, whereN is a positive integer greater than 1, the first parameter set is aPhysical Downlink Shared Channel Resource Element (PDSCH RE) mappingset, the second parameter set is a Quasi-Co-Location (QCL) parameterset; and transmitting an indication signaling, where the indicationsignaling carries indication information for indicating the firstparameter set and/or the second parameter set.

In one implementation mode, the N resource groups are obtained bydividing according to at least one of the following resources: atransmission block (TB), a codeword, a de-Modulation Reference Signal(DMRS) port group, a transport layer group (LG) and frequency domainlocation information.

In one implementation mode, one transmission block corresponds to oneresource group of the N resource groups, or one codeword corresponds toone resource group of the N resource groups, or one DMRS port groupcorresponds to one resource group of the N resource groups, or onetransport layer group corresponds to one resource group of the Nresource groups or one piece of frequency domain location informationcorresponds to one resource group of the N resource groups.

In one implementation mode, each resource group of the N resource groupscorresponds to one first parameter set and/or second parameter set.

In one implementation mode, the DMRS port group includes one or moreDMRS ports. The frequency domain location information includes at leastone of resource block (RB) set information or sub-band set information.

In one implementation mode, the indication signaling includes N firstdownlink signalings. The N first downlink signalings are used forindicating N first parameter sets and/or second parameter setsdetermined for the N resource groups respectively.

In one implementation mode, when the N first parameter sets and the Nsecond parameter sets are determined for the N resource groups, the Nfirst parameter sets are same.

In one implementation mode, when the N first parameter sets and the Nsecond parameter sets are determined for the N resource groups, the Nsecond parameter sets are same.

In one implementation mode, the indication signaling includes one firstdownlink signaling. The first downlink signaling is used for indicatingN first parameter sets and/or second parameter sets determined for the Nresource groups.

In one implementation mode, the indication signaling includes one firstdownlink signaling and N−1 second downlink signaling. The one firstdownlink signaling is used for indicating one first parameter set and/orsecond parameter set of N first parameter sets and/or second parametersets determined for the N resource groups. Each of the N−1 seconddownlink signalings is used to indicating one first parameter set orsecond parameter set of the N first parameter sets and/or secondparameter sets determined for the N resource groups.

In one implementation mode, the first downlink signaling includes atleast one signaling of a group consisting of: a high-layer signaling, aPDSCH RE mapping set and Quasi-Co-Location Indicator (PQI) signaling.

A signaling receiving method is provided according to another embodimentof the present disclosure. The method includes receiving an indicationsignaling transmitted by a network-side device. The indication signalingcarries indication information for indicating a first parameter setand/or a second parameter set determined by the network-side device forN resource groups. The first parameter set is a Physical Downlink SharedChannel Resource Element (PDSCH RE) mapping set. The second parameterset is a Quasi-Co-Location (QCL) parameter set; and N is a positiveinteger greater than 1.

In one implementation mode, the N resource groups are obtained bydividing according to at least one of the following resources: atransmission block, a codeword, a de-Modulation Reference Signal (DMRS)port group, a transport layer group and frequency domain locationinformation.

In one implementation mode, one transmission block corresponds to oneresource group of the N resource groups, or one codeword corresponds toone resource group of the N resource groups, or one DMRS port groupcorresponds to one resource group of the N resource groups, or onetransport layer group corresponds to one resource group of the Nresource groups or one piece of frequency domain location informationcorresponds to one resource group of the N resource groups.

In one implementation mode, each resource group of the N resource groupscorresponds to one first parameter set and/or second parameter set.

In one implementation mode, the DMRS port group includes one or moreDMRS ports. The frequency domain location information includes at leastone of resource block (RB) set information or sub-band set information.

In one implementation mode, the indication signaling includes N firstdownlink signalings. The N first downlink signalings are used forindicating N first parameter sets and/or second parameter setsdetermined for the N resource groups respectively.

In one implementation mode, when the N first parameter sets and the Nsecond parameter sets are determined for the N resource groups, the Nfirst parameter sets are same.

In one implementation mode, when the N first parameter sets and the Nsecond parameter sets are determined for the N resource groups, the Nsecond parameter sets are same.

In one implementation mode, the indication signaling includes one firstdownlink signaling. The first downlink signaling is used for indicatingN first parameter sets and/or second parameter sets determined for the Nresource groups.

In one implementation mode, the indication signaling includes one firstdownlink signaling and N−1 second downlink signaling. The one firstdownlink signaling is used for indicating one first parameter set and/orsecond parameter set of N first parameter sets and/or second parametersets determined for the N resource groups. Each of the N−1 seconddownlink signalings is used to indicating one first parameter set orsecond parameter set of the N first parameter sets and/or secondparameter sets determined for the N resource groups.

In one implementation mode, the first downlink signaling includes atleast one signaling of a group consisting of: a high-layer signaling, aPDSCH RE mapping set and Quasi-Co-Location Indicator (PQI) signaling.

A signaling transmitting device is provided according to anotherembodiment of the present disclosure. The device includes: a determiningmodule, which is configured to determine a first parameter set and/orsecond parameter set for N resource groups, where N is a positiveinteger greater than 1, the first parameter set is a Physical DownlinkShared Channel Resource Element (PDSCH RE) mapping set, the secondparameter set is a quasi-co-location (QCL) parameter set; and atransmitting module, which is configured to transmit an indicationsignaling, where the indication signaling carries indication informationfor indicating the first parameter set and/or the second parameter set.

In one implementation mode, the N resource groups are obtained bydividing according to at least one of the following resources: atransmission block, a codeword, a de-Modulation Reference Signal (DMRS)port group, a transport layer group and frequency domain locationinformation.

In one implementation mode, one transmission block corresponds to oneresource group of the N resource groups, or one codeword corresponds toone resource group of the N resource groups, or one DMRS port groupcorresponds to one resource group of the N resource groups, or onetransport layer group corresponds to one resource group of the Nresource groups or one piece of frequency domain location informationcorresponds to one resource group of the N resource groups.

A signaling receiving device is provided according to another embodimentof the present disclosure. The device includes a receiving module, whichis configured to receive an indication signaling transmitted by anetwork-side device. The indication signaling carries indicationinformation for indicating a first parameter set and/or a secondparameter set determined by the network-side device for N resourcegroups. The first parameter set is a Physical Downlink Shared ChannelResource Element (PDSCH RE) mapping set. The second parameter set is aquasi-co-location (QCL) parameter set. N is a positive integer greaterthan 1.

In one implementation mode, the N resource groups are obtained bydividing according to at least one of the following resources: atransmission block (TB), a codeword, a de-Modulation Reference Signal(DMRS) port group, a transport layer group (LG) and frequency domainlocation information.

In one implementation mode, one transmission block corresponds to oneresource group of the N resource groups, or one codeword corresponds toone resource group of the N resource groups, or one DMRS port groupcorresponds to one resource group of the N resource groups, or onetransport layer group corresponds to one resource group of the Nresource groups or one piece of frequency domain location informationcorresponds to one resource group of the N resource groups.

A network-side device is provided according to another embodiment of thepresent disclosure, including the above-mentioned signaling transmittingdevice.

A terminal is provided according to another embodiment of the presentdisclosure, including the above-mentioned signaling receiving device.

A storage medium is provided according to another embodiment of thepresent disclosure. The storage medium stores computer-executableinstructions which are configured to execute program codes of thefollowing steps: determining a first parameter set and/or a secondparameter set for N resource groups, where N is a positive integergreater than 1, the first parameter set is a Physical Downlink SharedChannel Resource Element (PDSCH RE) mapping set, the second parameterset is a Quasi-Co-Location (QCL) parameter set; and transmitting anindication signaling, where the indication signaling carries indicationinformation for indicating the first parameter set and/or the secondparameter set.

According to the embodiments of the present disclosure, a firstparameter set and/or a second parameter set for N resource groups isdetermined and the determined first parameter set and/or secondparameter set is transmitted to the terminal by an indication signaling,where N is a positive integer greater than 1, the first parameter set isa PDSCH RE mapping set and the second parameter set is a QCL parameterset. This can improve the performance in the joint transmission of thecoordinated multi-point transmission caused by the Physical DownlinkShared Channel Resource Element and/or Quasi-Co-Location Indicator inthe related art.

BRIEF DESCRIPTION OF DRAWINGS

The drawings described herein are used to provide a furtherunderstanding of the present disclosure, and form a part of the presentapplication. The exemplary embodiments and descriptions thereof in thepresent disclosure are used to explain the present disclosure and do notlimit the present disclosure in any improper way. In the drawings:

FIG. 1 is a schematic diagram illustrating that two transmission nodesperforms a joint transmission for one user in the related art;

FIG. 2 is a flowchart of a signaling transmitting method according to anembodiment of the present disclosure;

FIG. 3 is a flowchart of a signaling receiving method according to anembodiment of the present disclosure;

FIG. 4 is a block diagram of a signaling transmitting device accordingto an embodiment of the present disclosure; and

FIG. 5 is a block diagram of a signaling receiving device according toan embodiment of the present disclosure.

DETAILED DESCRIPTION

The present disclosure will be described in detail with reference to thedrawings in conjunction with embodiments. It is to be noted that if notin collision, the embodiments and features therein in the presentapplication may be combined with each other.

It is to be noted that the terms “first”, “second” and the like in thedescription, claims and drawings of the present disclosure are used todistinguish between similar objects and are not necessarily used todescribe a particular order or sequence.

Embodiment One

The embodiment of the present disclosure may be implemented on a networkstructure shown in FIG. 1. As shown in FIG. 1, the network structureincludes transmission nodes TP1, TP2 and a terminal. TP1 and TP2transmit data to the terminal. It is to be noted that the networkstructure may include multiple transmission nodes, and is not limited totwo.

A signaling transmitting method executing on the network structure isprovided in this embodiment. FIG. 2 is a flowchart of a signalingtransmitting method according to an embodiment of the presentdisclosure. As shown in FIG. 2, the process of the method includes stepsdescribed below.

In step S202, a first parameter set and/or a second parameter set isdetermined for N resource groups; where N is a positive integer greaterthan 1, the first parameter set is a Physical Downlink Shared ChannelResource Element (PDSCH RE) mapping set, the second parameter set is aQuasi-Co-Location (QCL) parameter set.

In step S204, an indication signaling is transmitted; where theindication signaling carries indication information for indicating thefirst parameter set and/or the second parameter set.

In above-mentioned steps, the first parameter set and/or the secondparameter set is determined for N resource groups and then istransmitted to the terminal through indication signaling; where N is apositive integer greater than 1, the first parameter set is the PDSCH REmapping set and the second parameter set is the QCL parameter set.Compared with the determination of the first parameter set and/or thesecond parameter set for only one resource group in the related art, thepresent disclosure improves the performance of the joint transmission.

It is to be noted that the N resource groups are obtained by dividingaccording to at least one of the following resources: a transmissionblock, a codeword, a de-Modulation Reference Signal (DMRS) port group, atransport layer group and frequency domain location information. TheDMRS port group may include one or more DMRS ports. The frequency domainlocation information may include, but is not limited to, at least oneof: resource block (RB) set information or sub-band set information.

It is to be noted that the division may be, but is not limited to, atleast one of the followings: one transmission block corresponds to oneresource group of the N resource groups, or one codeword corresponds toone resource group of the N resource groups, or one DMRS port groupcorresponds to one resource group of the N resource groups, onetransport layer group corresponds to one resource group of the Nresource groups and one piece of frequency domain location informationcorresponds to one resource group of the N resource groups.

Illustration is provided with following examples. (1) dividing by theTB, for example, TB1 is one resource group, TB 2 is one resource group,the TBs may be organized in the form of data packets transmitted from aMedia Access Control (MAC) to a physical layer in a LTE protocol; (2)dividing by the CW, for example, CW1 is one resource group, CW2 is oneresource group, the codeword may be a data stream obtained in the LTEprotocol after performing Cyclic Redundancy Code (CRC) check insertionand code block division on data in the TBs and performing CRC insertion,channel encoding and rate matching on each code block, and each codewordstream corresponds to one TB; (3) dividing by LG, for example, Layergroup 1 (LG1) is one resource group, Layer group 2 (LG2) is one resourcegroup, a complex symbol obtained from scrambling and modulation of thecodeword in the LTE will be mapped onto one or more transmission layersthrough layer mapping; one transmission layer group includes one or morelayers. when the number of layers changes, the group division method mayalso change; for example, in the case of two layers, LG1={Layer 1} andLG2={Layer 2}; in the case of three layers, LG1={Layer 1} and LG2={Layer2, Layer 3}; in the case of four layers, LG1={Layer 1, Layer 2} andLG2={Layer 3, Layer 4}; (4) dividing by the DMRS port group, forexample, a DMRS port group 1 (DMRSG1) is one resource group, Layer group2 (DMRSG2) is one resource group, the number of DMRS ports is related tothe layer number of the transmission, the group division is related tothe number of ports; for example, in the case of two DMRS ports,DMRSG1={port 7} and DMRSG2={port 8}; in the case of three ports,DMRSG1={port 7, port8} and DMRSG2={port 9}; in the case of four ports,DMRSG1={port 7, port8} and DMRSG2={port 9, port10}; (5) dividing by thefrequency domain location information, for example, the PhysicalResource Blocks (PRBs) of a PRB index set 1 are one resource group, andthe PRBs of a PRB index set 2 are one resource group; the division ofthe PRB index set 1 and the PRB index set 2 includes, but is not limitedto: the PRB index set 1 is {1˜N_(rb1)}, the PRB index set 2 is{1+N_(rb1)˜N_(RB)}, where N_(RB) is the number of RBs in the systembandwidth, for example, the number of RBs in a 10M system bandwidth is50, N_(rb1) is an integer less than N_(RB); the division may also beperformed according to a sub-band, the RBs included in a sub-band set 1is one resource group, the RBs included in a sub-band set 2 is oneresource group, the sub-band is a RB set including multiple RBs.

In one embodiment of the present disclosure, each resource groupcorresponds to one first parameter set and/or second parameter set.

In one embodiment of the present disclosure, the indication signalingmay include: a high layer signaling and/or a physical layer signaling.The high layer signaling is used for indicating parameter configurationinformation of the first parameter set and/or second parameter set. Thehigh layer signaling or the physical layer signaling is used forindicating the first parameter set and/or second parameter set.

It is to be noted that the indication signaling may also be called adownlink signaling or a downlink control signaling, and is not limitedthereto.

In one embodiment of the present disclosure, the indication signalingmay include N first downlink signalings. The N first downlink signalingsare used for indicating N first parameter sets and/or second parametersets determined for the N resource groups respectively. That is, the Nfirst downlink signalings are used for indicating N first parameter setsand/or second parameter sets respectively.

It is to be noted that the N first parameter sets and/or secondparameter sets may be independent of each other, but is not limitedthereto.

It is to be noted that determining the N first parameter sets and/or Nsecond parameter sets for the N resource groups is determining Nparameter sets for the N resource groups. Each parameter set includesone first parameter set and one second parameter set. The determined Nfirst parameter sets may be the same or the determined N secondparameter sets may be the same.

In one embodiment of the present disclosure, when the N first parametersets may be same, the N second parameter sets may be different. When theN second parameter sets may be same, the N first parameter sets may bedifferent. In this way, different parameter sets are determined for theN resource sets. Compared with the related art in which the parametersets are the same, different CSI-RSs or CRSs may also be obtained whenthe same DMRSs are possessed, so that different CSI-RSs or CRSs areadopted to perform channel measurement, channel conditions of differenttransmission nodes or base stations are reflected, and the performanceof the joint transmission is improved.

It is to be noted that the N second parameter sets may be different, andmay be represented as: at least one parameter in the N second parametersets is different. The N first parameter sets may be different, and maybe represented as: at least one parameter in the N first parameter setsis different.

In one embodiment of the present disclosure, the indication signalingmay include one first downlink signaling. The one first downlinksignaling is used for indicating N first parameter sets and/or secondparameter sets determined for the N resource groups.

It is to be noted that the N second parameter sets at least includeparameter information of N quasi-co-location NZP CSI-RSs correspondingto the N resource groups and/or parameter information of N CRSs. Thatis, one QCL parameter set has N sets of CRS parameter sets and/or N setsof CSI-RS parameter sets. One CRS parameter set of the N sets of CRSparameter sets corresponds to CRS parameters of resource group 1 toresource group N. One CSI-RS parameter set of the N sets of CSI-RSparameter sets corresponds to CSI-RS parameters of the resource group 1to resource group N.

In this embodiment, CSI-RS and/or CRS parameters are added in the QCLparameter sets, so that N different parameter sets can be indicatedusing one first downlink signaling.

In one embodiment of the present disclosure, the indication signalingmay include one first downlink signaling and N−1 second downlinksignalings. The one first downlink signaling is used for indicating onefirst parameter set and/or second parameter set of N first parametersets and/or second parameter sets determined for the N resource groups.One of the N−1 second downlink signalings is used for indicating the onefirst parameter set and/or second parameter set of the N first parametersets and/or second parameter sets determined for the N resource groups.

It is to be noted that the one first downlink signaling may be, but isnot limited to, at least one of the following signalings: a high layersignaling, a PDSCH RE mapping set and a PQI. The N−1 second downlinksignalings may also be PQIs or high layer signalings, but may also beother downlink signalings, and are not limited thereto.

In the above-mentioned embodiment, N−1 second downlink signalings areprovided in addition to the one first downlink signaling to indicateparameter sets corresponding to different resource groups together, theperformance of the joint transmission is improved.

In one implementation mode, the entity implementing the above steps maybe a network-side device. The network-side device may be a transmissionnode or a base station. The transmission node or the base stationincludes, but is not limited to: a transmission node, a base station, amacro base station, a micro base station, a small home base station, awireless hotspot, a wireless remote and a relay.

A signaling receiving method executing on the network structure shown inFIG. 1 is further provided in this embodiment. FIG. 3 is a flowchart ofa signaling receiving method according to an embodiment of the presentdisclosure. As shown in FIG. 3, the process of the method includes stepsdescribed below.

In step S302, an indication signaling transmitted by a network-sidedevice is received. The indication signaling carries indicationinformation for indicating a first parameter set and/or a secondparameter set determined by the network-side device for N resourcegroups. The first parameter set is a Physical Downlink Shared ChannelResource Element (PDSCH RE) mapping set. The second parameter set is aquasi-co-location (QCL) parameter set. N is a positive integer greaterthan 1.

In step S304, parameters in the first parameter set and/or the secondparameter set are adopted to perform data detection and/or channelmeasurement.

In above-mentioned steps, the received indication signaling carries theindication information for indicating the first parameter set and/or asecond parameter set determined by the network-side device for Nresource groups, the first parameter set is a PDSCH RE mapping set, thesecond parameter set is a QCL parameter set, and N is a positive integergreater than 1. Compared with the determination of the first parameterset and/or the second parameter set for only one resource group in therelated art, the present disclosure improves the performance of thejoint transmission.

It is to be noted that the step S302 may be executed independently, andmay also be executed with the step S304.

It is to be noted that the N resource groups are obtained by dividingaccording to at least one of the following resources: a transmissionblock, a codeword, a de-Modulation Reference Signal (DMRS) port group, atransport layer group and frequency domain location information. TheDMRS port group may include one or more DMRS ports. The frequency domainlocation information may include at least one of: resource block (RB)set information or sub-band set information. The time domain locationinformation may include at least one of: offset information indicationinformation, subframe set indication information or signal setindication information.

It is to be noted that the division may be, but is not limited to, atleast one of the followings: one transmission block corresponds to oneresource group of the N resource groups, or one codeword corresponds toone resource group of the N resource groups, or one DMRS port groupcorresponds to one resource group of the N resource groups, onetransport layer group corresponds to one resource group of the Nresource groups and one piece of frequency domain location informationcorresponds to one resource group of the N resource groups.

Each resource group corresponds to one first parameter set and/or secondparameter set.

In one embodiment of the present disclosure, the indication signalingmay include: a high layer signaling and/or a physical layer signaling.The high layer signaling is used for indicating parameter configurationinformation of the first parameter set and/or second parameter set. Thehigh layer signaling or the physical layer signaling is used forindicating the first parameter set and/or second parameter set.

It is to be noted that the indication signaling may also be called adownlink signaling or a downlink control signaling, and is not limitedthereto.

In one embodiment of the present disclosure, the indication signalingmay include N first downlink signalings. The N first downlink signalingsare used for indicating N first parameter sets and/or second parametersets determined for the N resource groups respectively. That is, the Nfirst downlink signalings are used for indicating N first parameter setsand/or second parameter sets respectively.

It is to be noted that the N first parameter sets and/or secondparameter sets may be independent of each other, but is not limitedthereto.

It is to be noted that determining N first parameter sets and/or Nsecond parameter sets for the N resource groups is determining Nparameter sets for the N resource groups. Each parameter set includesone first parameter set and one second parameter set. The determined Nfirst parameter sets may be the same or the determined N secondparameter sets may be the same.

In one embodiment of the present disclosure, when the N first parametersets may be same, the N second parameter sets may be different. When theN second parameter sets may be same, the N first parameter sets may bedifferent. In this way, different parameter sets are determined for theN resource sets. Compared with the related art in which the parametersets are the same, different CSI-RSs or CRSs may also be obtained whenthe same DMRSs are possessed, so that different CSI-RSs or CRSs areadopted to perform channel measurement, channel conditions of differenttransmission nodes or base stations are reflected, and the performanceof the joint transmission is improved.

It is to be noted that the N second parameter sets may be different, andmay be represented as: at least one parameter in the N second parametersets is different. The N first parameter sets may be different, and maybe represented as: at least one parameter in the N first parameter setsis different.

In one embodiment of the present disclosure, the indication signalingmay include one first downlink signaling. The one first downlinksignaling is used for indicating N first parameter sets and/or secondparameter sets determined for the N resource groups.

It is to be noted that the N second parameter sets at least includeparameter information of N quasi-co-location NZP CSI-RSs correspondingto the N resource groups and/or parameter information of N CRSs. Thatis, one QCL parameter set has N sets of CRS parameter sets and/or N setsof CSI-RS parameter sets. One CRS parameter set of the N sets of CRSparameter sets corresponds to CRS parameters of resource group 1 toresource group N. One CSI-RS parameter set of the N sets of CSI-RSparameter sets corresponds to CSI-RS parameters of the resource group 1to resource group N.

In this embodiment, CSI-RS and/or CRS parameters are added in the QCLparameter sets, so that N different parameter sets can be indicatedusing one first downlink signaling.

In one embodiment of the present disclosure, the indication signalingmay include one first downlink signaling and N−1 second downlinksignalings. The one first downlink signaling is used for indicating onefirst parameter set and/or second parameter set of N first parametersets and/or second parameter sets determined for the N resource groups.One of the N−1 second downlink signalings is used for indicating the onefirst parameter set and/or second parameter set of the N first parametersets and/or second parameter sets determined for the N resource groups.

It is to be noted that the one first downlink signaling may be a PQI ora high layer signaling. The N−1 second downlink signalings may also bePQIs or high layer signalings, but may also be other downlinksignalings, and are not limited thereto.

In the above-mentioned embodiment, N−1 second downlink signalings areprovided in addition to the one first downlink signaling to indicateparameter sets corresponding to different resource groups together, theperformance of the joint transmission is improved.

In one implementation mode, the entity implementing the above steps maybe a terminal, but is not limited to a mobile terminal and a computerterminal, such as a data card, a mobile phone, a tablet computer, alaptop, a personal computer, a tablet, a personal digital assistant, aBluetooth and other various receiving devices.

To better understand the present disclosure, the present disclosure willbe further described below in conjunction with preferred embodiments.

The transmission node or the base station referred in the preferredembodiment of the present disclosure includes, but is not limited to: abase station, a macro base station, a micro base station, a small homebase station, a wireless hotspot, a wireless remote and a relay.

To facilitate description, a communication system of the embodiment isdescribed here. The communication system includes N (N=2) coordinatedtransmission nodes (TP1 and TP2). N transmission nodes are provides withNt transmission antennas. Nt is a positive integer greater than or equalto 1. Here, the number of transmission antennas of each communicationnode may be different. N may be greater than 2. In this embodiment, N=2for an example to facilitate description, similar extensions for casesof N>2 may be performed. At least one transmission node of the Ntransmission nodes transmits the PDSCH to the terminal on the sametime-frequency resources. Meanwhile, in order to enable the terminal toperform detection on received data, a DMRS with the same precoding withthe PDSCH needs to be transmitted and used for channel estimation. Thedetection of the PDSCH is performed with the estimated channel. Toenable the terminal to perform a time offset and frequency offsetestimation and to perform measurement of a channel quality, thetransmission nodes need to transmit a CSI-RS or a CRS. Since nodes forthe coordinated transmission is transparent to the user, the user doesnot need to know that data is transmitted by which transmission node.The base station only needs to notify the user that a transmitted andnotified CSI-RS and/or CRS of current data and a transmitted andnotified CSI-RS and/or CRS of the user DMRS have a quasi-co-locationrelationship. The CSI-RSs transmitted and notified by these two haveapproximately the same large-scale characteristics of the channel andapproximately come from a same transmission node. For example, the TP1optionally transmits one or more signals of thePDSCH1/DMRS1/CSI-RS1/CRS1, and the TP1 optionally transmits one or moresignals of the PDSCH2/DMRS2/CSI-RS2/CRS2.

The transmission nodes need to configure M=4 PDSCH RE mapping parametersets and/or QCL parameter sets through the high layer signaling, andtransmit configured parameter contents to the terminal through the highlayer signaling, and by at least one DSCH RE mapping and PQI. The PQI isa parameter of a DCI format 2D in a physical layer signaling, including2 bit used for indicating one set in the M=4 parameter sets. As shown intable 1,

The terminal receiving the physical layer signaling and obtain a valueof the PQI, thereby obtaining the PDSCH RE mapping parameter sets and/orQCL parameter sets. In this way, the CSI-RS and/or CRS corresponding tothe DMRS of the received PDSCH is obtained and is used for performingchannel detection.

Preferred Embodiment 1: Division of Resource Groups

The resource groups are obtained by dividing according to one or more ofresources described below.

N resource groups are obtained by dividing according to the transmissionblock. For example, a TB1 is one resource group and a TB2 is oneresource group. The transmission block may be an organized in the formof data packets transmitted from a Media Access Control (MAC) to aphysical layer in a LTE protocol.

N resource groups are obtained by dividing according to the codeword,for example, a CW1 is one resource group and a CW2 is one resourcegroup. The codeword may be a data stream obtained in the LTE protocolafter performing Cyclic Redundancy Code (CRC) insertion and code blockdivision on data in the TBs and performing CRC insertion, channelencoding and rate matching on each code block. Each codeword streamcorresponds to one TB.

N resource groups are obtained by dividing according to the transportlayer group, for example, Layer group 1 (LG1) is one resource group, andLayer group 2 (LG2) is one resource group. A complex symbol obtainedfrom scrambling and modulation of the codeword will be mapped onto oneor more transmission layers through layer mapping. One transmissionlayer group includes one or more layers. When the number of layerschanges, the group division method may also change. For example, in thecase of two layers, LG1={Layer 1} and LG2={Layer 2; in the case of threelayers, LG1={Layer 1} and LG2={Layer 2, Layer 3}; in the case of fourlayers, LG1={Layer 1, Layer 2} and LG2={Layer 3, Layer 4}.

The N resource groups are obtained by dividing according to the DMRSport group. For example, a DMRS port group 1 (DMRSG1) is one resourcegroup and Layer group 2 (DMRSG2) is one resource group. The number ofDMRS ports is related to the layer number of the transmission. The groupdivision is related to the number of ports. For example, in the case oftwo DMRS ports, DMRSG1={port 7} and DMRSG2={port 8}; in the case ofthree ports, DMRSG1={port 7, port8} and DMRSG2={port 9}; in the case offour ports, DMRSG1={port 7, port8} and DMRSG2={port 9, port10}.

The N resource groups are obtained by dividing according to thefrequency domain location information. For example, Physical ResourceBlocks (PRBs) of a PRB index set 1 are one resource group, and PRBs of aPRB index set 2 are one resource group. The division of the PRB indexset 1 and the PRB index set 2 includes, but is not limited to: the PRBindex set 1 is {1˜N_(rb1)} and the PRB index set 2 is{1+N_(rb1)˜N_(RB)}. The N_(RB) is the number of RBs in the systembandwidth. For example, the number of RBs in a 10M system bandwidth is50, N_(rb1) is an integer less than N_(RB). The PRB index set 1 and thePRB index set 2 may also be obtained by dividing according to asub-band. The RBs included in a sub-band set 1 is one resource group andthe RBs included in a sub-band set 2 is one resource group. The sub-bandis a RB set including multiple RBs.

Preferred Embodiment 2: N PQIs

In this embodiment, a downlink control signaling transmitted by a basestation includes values of the N PQIs. The user obtains the values ofthe N PQIs by receiving downlink control signaling and uses the valuesof the N PQIs to find parameter configuration in a PDSCH RE mapping setand parameter configuration in a QCL parameter set indicated by thevalues of the N PQIs. And the user determines and quasi-co-locationinformation of a DMRS port and a CSI-RS/CRS according to the QCLparameter set.

Base station side:

(1) The base station determines N PDSCH RE mapping sets and/orQuasi-Co-Location parameter sets for information of N resource groups,where N>1.

Without loss of generality, assuming that N=2, similar extensions forother cases of N may be performed.

According to the division manner of resource groups in the embodimentone, N resource groups are obtained by dividing according to one or moreof the following information:

a transmission block, a codeword, a de-Modulation Reference Signal(DMRS) port group, a transport layer group and frequency domain locationinformation.

In a specific implementation process, the information may be thetransmission block, the codeword, the de-Modulation Reference Signal(DMRS) port group, the transport layer group and frequency domainlocation information.

The base station configures M=4 quasi-co-location parameter sets: QCLSet0, QCL Set1, QCL Set2 and QCL Set3.

Each QCL parameter set includes values of the following parameters:

-   -   configuration parameter information of the CRS, including the        number of ports and a parameter of frequency domain shift;    -   subframe configuration parameter information of a MBSFN;    -   parameter configuration information of a ZP CSI-RS;    -   configuration information of a data channel starting symbol        parameter; and    -   information of a quasi-co-location Non-Zero Power (NZP) CSI-RS.

For the sake of simplicity, the quasi-co-location Non-Zero Power CSI-RSis simplified into NZP CSI-RS.

For a more intuitive description, the values of different parameters inthe parameter sets described above are specified as values of differentparameters in the QCL parameter sets. Summary is shown in table 2.

TABLE 2 QCL CRS PDSCH MBSFN NZP ZP parameter pattern 1 starting SubframeCSI-RS CSI-RS set 1 position 1 config1 index 1 config 1 QCL CRS PDSCHMBSFN NZP ZP parameter pattern 2 starting Subframe CSI-RS CSI-RS set 2position 2 config2 index 2 config 2 QCL CRS PDSCH MBSFN NZP ZP parameterpattern3 starting Subframe CSI-RS CSI-RS set 3 position 3 config3 index3 config 3 QCL CRS PDSCH MBSFN NZP ZP parameter pattern 4 startingSubframe CSI-RS CSI-RS set 4 position 4 config4 index 4 config 4

At least one parameter value of parameter values in each set of the fourQCL parameter sets is different. For example, except that the CRSpattern mode has different values, other parameter values in the foursets are the same. Alternatively, for example, except that the NZPCSI-RS index has different values, other parameter values in the foursets are the same. Meanwhile, the base station configures four parametersets related to the PDSCH RE mapping: PDSCH RE Set1 to PDSCH RE Set4,and combines the PDSCH RE parameter sets and the QCL parameter sets intofour Physical Downlink Shared Channel Resource Element mapping setsand/or Quasi-Co-Location parameter sets. Each Physical Downlink SharedChannel Resource Element mapping set and/or Quasi-Co-Location parameterset includes one QCL parameter set and one PDSCH RE Set, and isindicated using a Physical Downlink Shared Channel Resource Elementmapping and PQI. Each PQI includes 2 bits. Each value of the 2 bitsindicates one set of the Physical Downlink Shared Channel ResourceElement mapping sets and/or Quasi-Co-Location parameter sets.

The base station determines the Physical Downlink Shared ChannelResource Element mapping sets and/or Quasi-Co-Location parameter setsfor a resource group 1 and a resource group 2. For example, the resourcegroup 1 selects a Physical Downlink Shared Channel Resource Elementmapping set and/or Quasi-Co-Location parameter set corresponding toPQI=‘00’. For example, the resource group 2 selects a Physical DownlinkShared Channel Resource Element mapping set and/or Quasi-Co-Locationparameter set corresponding to PQI=‘01’. The resource groups may alsoselect other POI values, and are not limited to the values in thisembodiment.

According to different resources, one of the following cases isprovided.

The CW1 corresponds to one PQI value, and the CW2 corresponds to one PQIvalue.

The LG1 corresponds to one PQI value, and the LG2 corresponds to one PQIvalue.

The DMRS port group DMRSG1 corresponds to one PQI value, and the DMRSport group DMRSG2 corresponds to one PQI value.

The RB of the frequency domain location information 1 corresponds to onePQI value and the RB of the frequency domain location information 2corresponds to one PQI value.

(2) The base station transmits parameter configuration information ofthe Physical Downlink Shared Channel Resource Element mapping set and/orparameter configuration information of the Quasi-Co-Location parameterset by a high layer signaling, and transmits downlink controlinformation. The downlink control information includes N pieces of PQIinformation. Each piece of PQI information indicates one set of thePhysical Downlink Shared Channel Resource Element mapping sets and/orQuasi-Co-Location parameter sets.

For a terminal:

The terminal receives high layer physical information and a physicaldownlink control signaling transmitted by the base station. The terminalacquires parameter configuration of each PDSCH RE Set and parameterconfiguration of each QCL parameter set through the high layersignaling. According to the received downlink control signaling, theterminal acquires N pieces of PQI information. Each PQI indicates onePDSCH RE Set and one QCL parameter set. So that the terminal obtainsthat the quasi-co-location NZP CSI-RS configuration information and CRSinformation of the DMRS port of a codeword 1 in the PDSCH in the currentsubframe correspond to the NZP CSI-RS configuration information and CRSconfiguration information in the QCL parameter set corresponding to afirst PQI, and the quasi-co-location NZP CSI-RS configurationinformation and CRS information of the DMRS port of a codeword 2correspond to the NZP CSI-RS configuration information and CRSconfiguration information in the QCL parameter set corresponding to asecond PQI.

It is to be noted that the PQI signaling in this embodiment may also besubstituted with the high layer signaling. The high layer signalingindicates N different PDSCH RE sets or QCL sets, which have the samecontents with the PQI table defined in this embodiment.

Preferred Embodiment 3: One PQI

In this embodiment, a downlink control signaling transmitted by the basestation includes one PQI value. The user obtains the one PQI value byreceiving the downlink control signaling and uses the one PQI value tofind parameter configuration in a PDSCH RE mapping set indicated by theone PQI value and parameter configuration in a QCL parameter set. Andthe user determines a DMRS port and quasi-co-location information of aCSI-RS/CRS according to the QCL parameter set.

Base station side:

The base station determines N PDSCH RE mapping sets and/orQuasi-Co-Location parameter sets for information of N resource groups,N>1.

Without loss of generality, assuming that N=2, similar extensions forother cases of N may be performed.

According to the division manner of resource groups in the embodimentone, N resource groups are divided according to one or more of thefollowing resources:

a transmission block, a codeword, a de-Modulation Reference Signal(DMRS) port group, a transport layer group and frequency domain locationinformation

In a specific implementation process, the information may be thetransmission block, the codeword, the de-Modulation Reference Signal(DMRS) port group, the transport layer group and frequency domainlocation information.

The base station configures M=4 quasi-co-location parameter sets: QCLSet0, QCL Set1, QCL Set2 and QCL Set3.

Each QCL parameter set includes values of the following parameters:

-   -   configuration parameter information of one or more CRSs,        including the number of ports and a parameter of frequency        domain shift;    -   subframe configuration parameter information of a MBSFN;    -   parameter configuration information of a ZP CSI-RS;    -   configuration information of a data channel starting symbol        parameter; and    -   information of one or more quasi-co-location Non-Zero Power        (NZP) CSI-RSs.

For the sake of simplicity, the quasi-co-location Non-Zero Power CSI-RSis simplified into NZP CSI-RS.

For a more intuitive description, QCL parameters are written intotables. Different parameter values in the above parameter sets aresummarized into table 3 to table 5 described below. The table 3 is thecase where one QCL parameter set has a number N of CRS parameter sets.The table 4 is the case where one QCL parameter set has a number N ofCSI-RS parameter sets. The table 5 is the case where one QCL parameterset has a number N of CRS parameter sets and a number N of CSI-RSparameter sets.

TABLE 3 QCL CRS pattern 1 in PDSCH MBSFN NZP ZP parameter resource group1 starting Subframe CSI-RS CSI-RS set 1 CRS pattern 1 in position 1config1 index 1 config 1 resource group 2 QCL CRS pattern 2 in PDSCHMBSFN NZP ZP parameter resource group 1 starting Subframe CSI-RS CSI-RSset 2 CRS pattern 2 in position 2 config2 index 2 config 2 resourcegroup 2 QCL CRS pattern 3 in PDSCH MBSFN NZP ZP parameter resource group1 starting Subframe CSI-RS CSI-RS set 3 CRS pattern 3 in position 3config3 index 3 config 3 resource group 2 QCL CRS pattern 4 in PDSCHMBSFN NZP ZP parameter resource group 1 starting Subframe CSI-RS CSI-RSset 4 CRS pattern 4 in position 4 config4 index 4 config 4 resourcegroup 2

TABLE 4 QCL CRS PDSCH MBSFN NZP CSI-RS index 1 ZP parameter pattern 1starting Subframe in resource group 1 CSI-RS set 1 position 1 config1NZP CSI-RS index 1 config 1 in resource group 2 QCL CRS PDSCH MBSFN NZPCSI-RS index 2 ZP parameter pattern 2 starting Subframe in resourcegroup 1 CSI-RS set 2 position 2 config2 NZP CSI-RS index 2 config 2 inresource group 2 QCL CRS PDSCH MBSFN NZP CSI-RS index 3 ZP parameterpattern 3 starting Subframe in resource group 1 CSI-RS set 3 position 3config3 NZP CSI-RS index 3 config 3 in resource group 2 QCL CRS PDSCHMBSFN NZP CSI-RS index ZP parameter pattern 4 starting Subframe 4 inresource group 1 CSI-RS set 4 position 4 config4 NZP CSI-RS index 4config 4 in resource group 2

TABLE 5 QCL CRS pattern 1 in PDSCH MBSFN NZP CSI-RS index 1 ZP parameterresource group 1 starting Subframe in resource group 1 CSI-RS set 1 CRSpattern 1 in position 1 config1 NZP CSI-RS index 1 config 1 resourcegroup 2 in resource group 2 QCL CRS pattern 2 in PDSCH MBSFN NZP CSI-RSindex 2 ZP parameter resource group 1 starting Subframe in resourcegroup 1 CSI-RS set 2 CRS pattern 2 in position 2 config2 NZP CSI-RSindex 2 config 2 resource group 2 in resource group 2 QCL CRS pattern 3in PDSCH MBSFN NZP CSI-RS index 3 ZP parameter resource group 1 startingSubframe in resource group 1 CSI-RS set 3 CRS pattern 3 in position 3config3 NZP CSI-RS index 3 config 3 resource group 2 in resource group 2QCL CRS pattern 4 in PDSCH MBSFN NZP CSI-RS index 4 ZP parameterresource group 1 starting Subframe in resource group 1 CSI-RS set 4 CRSpattern 4 in position 4 config4 NZP CSI-RS index 4 config 4 resourcegroup 2 in resource group 2

At least one parameter value of parameter values in each set of the fourQCL parameter sets is different. For example, except that values of aCRS pattern mode in resource group 1 and a CRS pattern mode in resourcegroup 2 are different, other parameter values in the four sets are thesame. Alternatively, for example, except that the NZP CSI-RS index hasdifferent values in the resource group 1 and the resource group 2 aredifferent, other parameter values in the four sets are the same.Meanwhile, the base station configures four parameter sets related tothe PDSCH RE mapping: PDSCH RE Set1 to PDSCH RE Set4, and combines thePDSCH RE parameter sets and the QCL parameter sets into four PhysicalDownlink Shared Channel Resource Element mapping sets and/orQuasi-Co-Location parameter sets. Each Physical Downlink Shared ChannelResource Element mapping set and/or Quasi-Co-Location parameter setincludes one QCL parameter set and one PDSCH RE Set and is indicatedusing a Physical Downlink Shared Channel Resource Element mapping andPQI. Each PQI includes 2 bits. Each value of the 2 bits indicates oneset of the Physical Downlink Shared Channel Resource Element mappingsets and/or Quasi-Co-Location parameter sets.

The base station determines Physical Downlink Shared Channel ResourceElement mapping sets and/or Quasi-Co-Location parameter sets for aresource group 1 and a resource group 2. For example, the resource group1 and the resource group 2 select a Physical Downlink Shared ChannelResource Element mapping set and/or Quasi-Co-Location parameter setcorresponding to PQI=‘00’. The resource group 1 corresponds to a CRSparameter value in a CRS pattern 1 of the resource group 1 correspondingto PQI=‘00’ and/or a NZP CSI-RS value in a NZP CSI-RS index 1 of theresource group 1. The resource group 2 corresponds to a CRS parametervalue in a CRS pattern 1 of the resource group 2 corresponding toPQI=‘00’ and/or a NZP CSI-RS value in a NZP CSI-RS index 1 of theresource group 2. Other parameters correspond to parameter values otherthan the CRS and NZP CSI-RS of the PQI=‘00’.

The PQI may have other values, and are not limited to the values in thisembodiment.

According to different resources, the resource group 1 in thisembodiment may be substituted with CW1, LG1, DMRS port group DMRSG1 orfrequency domain location information 1. The resource group 2 may besubstituted with CW2, LG2, DMRS port group DMRSG2 or frequency domainlocation information 2.

(2) The base station transmits parameter configuration information ofthe Physical Downlink Shared Channel Resource Element mapping set and/orparameter configuration information of the Quasi-Co-Location parameterset by a high layer signaling, and transmits downlink controlinformation. The downlink control information includes one piece of PQIinformation. Each piece of PQI information indicates one set of thePhysical Downlink Shared Channel Resource Element mapping sets and/orQuasi-Co-Location parameter sets. The Quasi-Co-Location parameter setincludes N CSR parameter sets and/or N NZP CSI-RS parameters.

For a terminal:

The terminal receives high layer physical information and a physicaldownlink control signaling transmitted by the base station. The terminalacquires parameter configuration of each PDSCH RE Set and parameterconfiguration of each QCL parameter set through the high layersignaling. According to the received downlink control signaling, theterminal acquires one piece of PQI information. Each PQI indicates onePDSCH RE Set and one QCL parameter set. So that the terminal obtainsthat the quasi-co-location NZP CSI-RS configuration information and CRSinformation of the DMRS port of a codeword 1 in the PDSCH in the currentsubframe correspond to a CRS parameter value of the CRS pattern 1 in theresource group 1 of a QCL parameter group and/or a value of NZP CSI-RSof the NZP CSI-RS index 1 in the resource group 1, and thequasi-co-location NZP CSI-RS configuration information and CRSinformation of the DMRS port of a codeword 2 corresponds to a CRSparameter value of the CRS pattern 1 in the resource group 2 of a QCLparameter group and/or a value of NZP CSI-RS of the NZP CSI-RS index 1in the resource group 2.

It is to be noted that the PQI signaling in this embodiment may also besubstituted with the high layer signaling. The high layer signalingindicates N different PDSCH RE sets or QCL sets, which have the samecontents with the PQI tables defined in this embodiment.

Preferred Embodiment 4: One PQI and N−1 Second Downlink Signalings

In this embodiment, a downlink control signaling transmitted by the basestation includes values of the one PQI and the N−1 second downlinksignalings. The user obtains the values of the one PQI and the N−1second downlink signaling by receiving the downlink control signalingand uses the values of one PQI and the N−1 second downlink signaling tofind parameter configuration in a PDSCH RE mapping set indicated by thevalues of one PQI and the N−1 second downlink signaling as well asparameter configuration in a QCL parameter set. And the user determinesa DMRS port and quasi-co-location information of a CSI-RS/CRS accordingto the QCL parameter set.

Base station side:

The base station determines N PDSCH RE mapping sets and/orQuasi-Co-Location parameter sets for information of N resource groups,N>1.

Without loss of generality, assuming that N=2, similar extensions forother cases of N may be performed.

According to the division manner of resource groups in the embodimentone, N resource groups are divided according to one or more of thefollowing resources:

a transmission block, a codeword, a de-Modulation Reference Signal(DMRS) port group, a transport layer group and frequency domain locationinformation.

In a specific implementation process, the information may be thetransmission block, the codeword, the de-Modulation Reference Signal(DMRS) port group, the transport layer group and frequency domainlocation information.

The base station configures M=4 quasi-co-location parameter sets: QCLSet0, QCL Set1, QCL Set2 and QCL Set3.

Each QCL parameter set includes values of the following parameters:

-   -   configuration parameter information of one CRS, including the        number of ports and a parameter of frequency domain shift;    -   subframe configuration parameter information of a MBSFN;    -   parameter configuration information of a ZP CSI-RS;    -   configuration information of a data channel starting symbol        parameter; and    -   information of one quasi-co-location Non-Zero Power (NZP)        CSI-RS.

For the sake of simplicity, the quasi-co-location Non-Zero Power CSI-RSis simplified into NZP CSI-RS.

For a more intuitive description, QCL parameters are written into atable. Different parameter values in the above parameter sets aresummarized into table 6 described below.

TABLE 6 QCL CRS PDSCH MBSFN NZP ZP CSI-RS parameter pattern 1 startingSubframe CSI-RS config 1 set 1 position 1 config1 index 1 QCL CRS PDSCHMBSFN NZP ZP CSI-RS parameter pattern 2 starting Subframe CSI-RS config2 set 2 position 2 config2 index 2 QCL CRS PDSCH MBSFN NZP ZP CSI-RSparameter pattern3 starting Subframe CSI-RS config 3 set 3 position 3config3 index 3 QCL CRS PDSCH MBSFN NZP ZP CSI-RS parameter pattern 4starting Subframe CSI-RS config 4 set 4 position 4 config4 index 4

At least one parameter value of parameter values in each set of the fourQCL parameter sets is different. For example, except that the CRSpattern has different values, other parameter values in the four setsare the same. Alternatively, for example, except that the NZP CSI-RSindex value has different values, other parameter values in the foursets are the same. Meanwhile, the base station configures four parametersets related to the PDSCH RE mapping: PDSCH RE Set1 to PDSCH RE Set4,and combines the PDSCH RE parameter sets and the QCL parameter sets intofour Physical Downlink Shared Channel Resource Element mapping setsand/or Quasi-Co-Location parameter sets. Each Physical Downlink SharedChannel Resource Element mapping set and/or Quasi-Co-Location parameterset includes one QCL parameter set and one PDSCH RE Set and is indicatedusing a Physical Downlink Shared Channel Resource Element mapping andPQI. Each PQI includes 2 bits. Each value of the 2 bits indicates oneset of the Physical Downlink Shared Channel Resource Element mappingsets and/or Quasi-Co-Location parameter sets.

The base station configures the N−1 second downlink control signalings,which are used for indicating parameter configuration of one CRS and/orparameter configuration of one NZP CSI-RS in the QCL.

The base station determines Physical Downlink Shared Channel ResourceElement mapping sets and/or Quasi-Co-Location parameter sets for aresource group 1 and a resource group 2. For example, the resource group1 selects a Physical Downlink Shared Channel Resource Element mappingset and/or Quasi-Co-Location parameter set corresponding to PQI=‘00’,and the resource group 2 selects a Physical Downlink Shared ChannelResource Element mapping set and/or Quasi-Co-Location parameter setcorresponding to PQI=‘01’. However, the CRS parameter configuration issubstituted with the CRS parameter configuration indicated by a seconddownlink signaling 1 and/or the NZP CSI-RS parameter configuration issubstituted with the NZP CSI-RS indicated by a second downlink signaling1.

The PQI values may be other values, and are not limited to the values inthis embodiment.

According to different resources, the resource group 1 in thisembodiment may be substituted with CW1, LG1, DMRS port group DMRSG1 orfrequency domain location information 1. The resource group 2 may besubstituted with CW2, LG2, DMRS port group DMRSG2 or frequency domainlocation information 2.

(2) The base station transmits parameter configuration information ofthe Physical Downlink Shared Channel Resource Element mapping set and/orparameter configuration information of the Quasi-Co-Location parameterset through a high layer signaling, and transmits downlink controlinformation. The downlink control information includes one pieces of PQIinformation. Each piece of PQI information indicates one set of thePhysical Downlink Shared Channel Resource Element mapping sets and/orQuasi-Co-Location parameter sets, and also includes N−1 second downlinkcontrol signalings. The N−1 second downlink control signaling are usedfor indicating parameter configuration of one CRS and/or parameterconfiguration of one NZP CSI-RS in the QCL.

For a terminal:

The terminal receives high layer physical information and a physicaldownlink control signaling transmitted by the base station. The terminalacquires parameter configuration of each PDSCH RE Set and parameterconfiguration of each QCL parameter set through the high layersignaling. According to the received downlink control signaling, theterminal acquires one piece of PQI information and the N−1 seconddownlink control signalings. Each PQI indicates one PDSCH RE Set and oneQCL parameter set. So that the terminal obtains that thequasi-co-location NZP CSI-RS configuration information and CRSinformation of the DMRS port of a codeword 1 in the PDSCH in the currentsubframe correspond to the NZP CSI-RS configuration information and CRSconfiguration information in the QCL parameter set corresponding to thePQI, and the quasi-co-location NZP CSI-RS configuration information andCRS information of the DMRS port of a codeword 2 correspond to the NZPCSI-RS configuration information and CRS configuration informationcorresponding to the second downlink control signalings.

It is to be noted that the PQI signaling in this embodiment may also besubstituted with the high layer signaling. The high layer signalingindicates N different PDSCH RE sets or QCL sets, which have the samecontents with the PQI table defined in this embodiment.

Preferred Embodiment 5: N Downlink Signalings being not PQI

In this embodiment, a downlink signaling transmitted by a base stationincludes N downlink signalings, such as high layer signaling or otherdownlink physical control signaling different from a PQI. The userobtains values of the N downlink signalings by receiving the N downlinksignalings and uses the values of the N downlink signalings to findparameter configuration in a QCL parameter set indicated by the valuesof the N downlink signaling. And the user determines a DMRS port andquasi-co-location information of a CSI-RS/CRS according to the QCLparameter set.

Base station side:

The base station determines N PDSCH RE mapping sets and/orQuasi-Co-Location parameter sets for information of N resource groups,N>1.

Without loss of generality, assuming that N=2, similar extensions forother cases of N may be performed.

According to the division manner of resource groups in the embodimentone, N resource groups are divided according to one or more of thefollowing resources:

a transmission block, a codeword, a de-Modulation Reference Signal(DMRS) port group, a transport layer group and frequency domain locationinformation. In a specific implementation process, the information maybe the transmission block, the codeword, the de-Modulation ReferenceSignal (DMRS) port group, the transport layer group and frequency domainlocation information.

The base station configures M=4 quasi-co-location parameter sets: QCLSet0, QCL Set1, QCL Set2 and QCL Set3.

Each QCL parameter set includes values of the following parameters:

-   -   configuration parameter information of the CRS, including the        number of ports and a parameter of frequency domain shift;    -   subframe configuration parameter information of a MBSFN;    -   parameter configuration information of a ZP CSI-RS;    -   configuration information of a data channel starting symbol        parameter; and    -   information of a quasi-co-location Non-Zero Power (NZP) CSI-RS.

For the sake of simplicity, the quasi-co-location Non-Zero Power CSI-RSis simplified into NZP CSI-RS.

For a more intuitive description, the values of different parameters inthe parameter sets described above are specified as values of differentparameters in the QCL parameter sets. Summary is shown in table 7.

TABLE 7 QCL CRS PDSCH MBSFN NZP ZP CSI-RS parameter pattern 1 startingSubframe CSI-RS config 1 set 1 position 1 config1 index 1 QCL CRS PDSCHMBSFN NZP ZP CSI-RS parameter pattern 2 starting Subframe CSI-RS config2 set 2 position 2 config2 index 2 QCL CRS PDSCH MBSFN NZP ZP CSI-RSparameter pattern3 starting Subframe CSI-RS config 3 set 3 position 3config3 index 3 QCL CRS PDSCH MBSFN NZP ZP CSI-RS parameter pattern 4starting Subframe CSI-RS config 4 set 4 position 4 config4 index 4

At least one parameter value of parameter values in each set of the fourQCL parameter sets is different. For example, except that the CRSpattern mode has different values, other parameter values in the foursets are the same. Alternatively, for example, except that the NZPCSI-RS index has different values, other parameter values in the foursets are the same.

The base station configures one downlink signaling D, which includes ahigh layer signaling or a physical signaling. The downlink signaling isnot a PQI signaling. The downlink signaling includes 2 bits used forindicating four QCL parameter sets. For example, the downlink signalingD has a value ‘00’ corresponding to a Set0, a value ‘01’ correspondingto a Set1, a value ‘10’ corresponding to a Set2 and a value ‘11’corresponding to a Set3.

The base station determines Quasi-Co-Location parameter sets for aresource group 1 and a resource group 2. For example, the resource group1 selects the Set0 corresponding to D=‘00’. For example, the resourcegroup 2 selects the Set1 corresponding to D=‘01’. The values of thedownlink signaling D the corresponding to different resource groups mayalso be other values, and are not limited to the values in thisembodiment.

According to different resources, one of the following cases isprovided.

The CW1 corresponds to one downlink signaling D value, and the CW2corresponds to one downlink signaling D value.

The LG1 corresponds to one downlink signaling D value, and the LG2corresponds to one downlink signaling D value.

The DMRS port group DMRSG1 corresponds to one downlink signaling Dvalue, and the DMRS port group DMRSG2 corresponds to one downlinksignaling D value.

The RB of the frequency domain location information 1 corresponds to onedownlink signaling D value and the RB of the frequency domain locationinformation 2 corresponds to one downlink signaling D value.

(2) The base station transmits parameter configuration information inthe Quasi-Co-Location parameter set through the high layer signaling,and transmits downlink control information. The downlink controlinformation includes N downlink signalings D. Each downlink signaling Dindicates one set in one Quasi-Co-Location parameter set.

For a terminal:

The terminal receives high layer physical information and a physicaldownlink control signaling transmitted by the base station. The terminalacquires parameter configuration of each QCL parameter set through thehigh layer signaling. According to the received downlink controlsignaling, the terminal acquires information of the N downlinksignalings D. Each downlink signaling D indicates one PDSCH RE Set andone QCL parameter set. So that the terminal obtains that thequasi-co-location NZP CSI-RS configuration information and CRSinformation of the DMRS port of a codeword 1 in the PDSCH in the currentsubframe correspond to the NZP CSI-RS configuration information and CRSconfiguration information in the QCL parameter set corresponding to afirst PQI, and the quasi-co-location NZP CSI-RS configurationinformation and CRS information of the DMRS port of a codeword 2correspond to the NZP CSI-RS configuration information and CRSconfiguration information in the QCL parameter set corresponding to asecond PQI.

It is to be noted that the QCL parameter set in this embodiment may alsobe substituted with the PDSCH RE mapping set, and may also besubstituted with the PDSCH RE mapping set and the QCL parameter set. Theimplementation process is similar to the process which only has the QCLparameter set, and repetition will not be made here.

From the description of the embodiments described above, it will beapparent to those skilled in the art that the method of any embodimentdescribed above may be implemented by software plus a necessarygeneral-purpose hardware platform, or may of course be implemented byhardware, but in many cases, the former is a preferred implementationmode. Based on this understanding, the present disclosure substantially,or the part contributing to the related art, may be embodied in the formof a software product. The computer software product is stored in astorage medium (such as a ROM/RAM, a magnetic disk or an optical disk)and includes several instructions for enabling a terminal device (whichmay be a mobile phone, a computer, a server, a network device, or thelike) to execute the method according to embodiments of the presentdisclosure.

Embodiment Two

A signaling transmitting device is further provided in this embodiment.The device is used for implementing the above-mentioned embodiments andpreferred implementation modes. What has been described will not berepeated. As used below, a term “module” may be software, hardware or acombination thereof capable of implementing predetermined functions. Thedevice in the embodiments described below is preferably implemented bysoftware, but implementation by hardware or by a combination of softwareand hardware is also possible and conceived.

FIG. 4 is a block diagram of signaling transmitting device according toan embodiment of the present disclosure. As shown in FIG. 4, the deviceincludes a determining module 42 and a transmitting module 44.

The determining module 42 is configured to determine a first parameterset and/or second parameter set for N resource groups, N is a positiveinteger greater than 1, the first parameter set is a PDSCH RE mappingset, the second parameter set is a QCL parameter set; and

The transmitting module 44 is connected to the determining module 42 andconfigured to transmit an indication signaling, the indication signalingcarries indication information for indicating the first parameter setand/or the second parameter set.

According to above-mentioned device, the first parameter set and/or thesecond parameter set is determined for N resource groups and then istransmitted to the terminal through indication signaling; where N is apositive integer greater than 1, the first parameter set is the PDSCH REmapping set and the second parameter set is the QCL parameter set.Compared with the determination of the first parameter set and/or thesecond parameter set for only one resource group in the related art, thepresent disclosure improves the performance of the joint transmission.

It is to be noted that the N resource groups are obtained by dividingaccording to at least one of the following resources: a transmissionblock, a codeword, a de-Modulation Reference Signal (DMRS) port group, atransport layer group and frequency domain location information. TheDMRS port group may include one or more DMRS ports. The frequency domainlocation information may include, but is not limited to at least one of:resource block (RB) set information or sub-band set information.

It is to be noted that the division may be, but is not limited to, atleast one of the followings: one transmission block corresponds to oneresource group of the N resource groups, or one codeword corresponds toone resource group of the N resource groups, or one DMRS port groupcorresponds to one resource group of the N resource groups, onetransport layer group corresponds to one resource group of the Nresource groups and one piece of frequency domain location informationcorresponds to one resource group of the N resource groups.

In one embodiment of the present disclosure, each resource groupcorresponds to one first parameter set and/or second parameter set.

In one embodiment of the present disclosure, the indication signalingmay include: a high layer signaling and/or a physical layer signaling.The high layer signaling is used for indicating parameter configurationinformation of the first parameter set and/or second parameter set. Thehigh layer signaling or the physical layer signaling is used forindicating the first parameter set and/or second parameter set.

It is to be noted that the indication signaling may also be called adownlink signaling or a downlink control signaling, and is not limitedthereto.

In one embodiment of the present disclosure, the indication signalingmay include N first downlink signalings. The N first downlink signalingsare used for indicating N first parameter sets and/or second parametersets determined for the N resource groups respectively. That is, the Nfirst downlink signalings are used for indicating N first parameter setsand/or second parameter sets respectively.

It is to be noted that the N first parameter sets and/or secondparameter sets may be independent of each other, but is not limitedthereto.

It is to be noted that determining the N first parameter sets and/or Nsecond parameter sets for the N resource groups is determining Nparameter sets for the N resource groups. Each parameter set includesone first parameter set and one second parameter set. The determined Nfirst parameter sets may be the same or the determined N secondparameter sets may be the same.

In one embodiment of the present disclosure, when the N first parametersets may be same, the N second parameter sets may be different. When theN second parameter sets may be same, the N first parameter sets may bedifferent. In this way, different parameter sets are determined for theN resource sets. Compared with the related art in which the parametersets are the same, different CSI-RSs or CRSs may also be obtained whenthe same DMRSs are possessed, so that different CSI-RSs or CRSs areadopted to perform channel measurement, channel conditions of differenttransmission nodes or base stations are reflected, and the performanceof the joint transmission is improved.

It is to be noted that the N second parameter sets may be different, andmay be represented as: at least one parameter in the N second parametersets is different. The N first parameter sets may be different, and maybe represented as: at least one parameter in the N first parameter setsis different.

In one embodiment of the present disclosure, the indication signalingmay include one first downlink signaling. The one first downlinksignaling is used for indicating N first parameter sets and/or secondparameter sets determined for the N resource groups.

It is to be noted that the N second parameter sets at least includeparameter information of N quasi-co-location NZP CSI-RSs correspondingto the N resource groups and/or parameter information of N CRSs. Thatis, one QCL parameter set has N sets of CRS parameter sets and/or N setsof CSI-RS parameter sets. One CRS parameter set of the N sets of CRSparameter sets corresponds to CRS parameters of resource group 1 toresource group N. One CSI-RS parameter set of the N sets of CSI-RSparameter sets corresponds to CSI-RS parameters of the resource group 1to resource group N.

In this embodiment, CSI-RS and/or CRS parameters are added in the QCLparameter sets, so that N different parameter sets can be indicatedusing one first downlink signaling.

In one embodiment of the present disclosure, the indication signalingmay include one first downlink signaling and N−1 second downlinksignalings. The one first downlink signaling is used for indicating onefirst parameter set and/or second parameter set of N first parametersets and/or second parameter sets determined for the N resource groups.One of the N−1 second downlink signalings is used for indicating the onefirst parameter set and/or second parameter set of the N first parametersets and/or second parameter sets determined for the N resource groups.

It is to be noted that the one first downlink signaling may be a PQI ora high layer signaling, but is not limited thereto. The N−1 seconddownlink signalings may also be PQIs or high layer signalings, but mayalso be other downlink signalings, and is not limited thereto.

In the above-mentioned embodiment, N−1 second downlink signalings areprovided in addition to the one first downlink signaling to indicateparameter sets corresponding to different resource groups together, theperformance of the joint transmission is improved.

It is to be noted that the signaling transmission device may be disposedin a network-side device. The network-side device may be a transmissionnode or a base station. The transmission node or the base stationincludes, but is not limited to: a base station, a macro base station, amicro base station, a small home base station, a wireless hotspot, awireless remote and a relay.

A signal receiving device is further provided in this embodiment. FIG. 5is a block diagram of the signaling receiving device according to anembodiment of the present disclosure. As shown in FIG. 5, the deviceincludes a receiving module 52 and a measuring module 54.

The receiving module 52 is configured to receive an indication signalingtransmitted by a network-side device, the indication signaling carriesindication information for indicating a first parameter set and/or asecond parameter set determined by the network-side device for Nresource groups, the first parameter set is a Physical Downlink SharedChannel Resource Element (PDSCH RE) mapping set, the second parameterset is a quasi-co-location (QCL) parameter set. N is a positive integergreater than 1; and

The measuring module 54 is connected to the receiving module 52 andconfigured to adopt parameters in the first parameter set and/or thesecond parameter set to perform a data detection and/or channelmeasurement.

The above-mentioned device, the received indication signaling carriesthe indication information for indicating the first parameter set and/ora second parameter set determined by the network-side device for Nresource groups, the first parameter set is a PDSCH RE mapping set, thesecond parameter set is a QCL parameter set, and N is a positive integergreater than 1. Compared with the determination of the first parameterset and/or the second parameter set for only one resource group in therelated art, the present disclosure improves the performance of thejoint transmission.

It is to be noted that the above-mentioned device may also only includethe receiving module 52, but is not limited thereto.

It is to be noted that the N resource groups are obtained by dividingaccording to at least one of the following resources: a transmissionblock, a codeword, a de-Modulation Reference Signal (DMRS) port group, atransport layer group and frequency domain location information. TheDMRS port group may include one or more DMRS ports. The frequency domainlocation information may include, but is not limited to at least one of:resource block (RB) set information or sub-band set information.

It is to be noted that the division may be, but is not limited to, atleast one of the followings: one transmission block corresponds to oneresource group of the N resource groups, or one codeword corresponds toone resource group of the N resource groups, or one DMRS port groupcorresponds to one resource group of the N resource groups, onetransport layer group corresponds to one resource group of the Nresource groups and one piece of frequency domain location informationcorresponds to one resource group of the N resource groups.

Each resource group corresponds to one first parameter set and/or secondparameter set.

In one embodiment of the present disclosure, the indication signalingmay include: a high layer signaling and/or a physical layer signaling.The high layer signaling is used for indicating parameter configurationinformation of the first parameter set and/or second parameter set. Thehigh layer signaling or the physical layer signaling is used forindicating the first parameter set and/or second parameter set.

It is to be noted that the indication signaling may also be called adownlink signaling or a downlink control signaling, and is not limitedthereto.

In one embodiment of the present disclosure, the indication signalingmay include N first downlink signalings. The N first downlink signalingsare used for indicating N first parameter sets and/or second parametersets determined for the N resource groups respectively. That is, the Nfirst downlink signalings are used for indicating N first parameter setsand/or second parameter sets respectively.

It is to be noted that the N first parameter sets and/or secondparameter sets may be independent of each other, but is not limitedthereto.

It is to be noted that determining the N first parameter sets and/or Nsecond parameter sets for the N resource groups is determining Nparameter sets for the N resource groups. Each parameter set includesone first parameter set and one second parameter set. The determined Nfirst parameter sets may be the same or the determined N secondparameter sets may be the same.

In one embodiment of the present disclosure, when the N first parametersets may be same, the N second parameter sets may be different. When theN second parameter sets may be same, the N first parameter sets may bedifferent. In this way, different parameter sets are determined for theN resource sets. Compared with the related art in which the parametersets are the same, different CSI-RSs or CRSs may also be obtained whenthe same DMRSs are possessed, so that different CSI-RSs or CRSs areadopted to perform channel measurement, channel conditions of differenttransmission nodes or base stations are reflected, and the performanceof the joint transmission is improved.

It is to be noted that the N second parameter sets may be different, maybe represented as: at least one parameter in the N second parameter setsis different. The N first parameter sets may be different, and may berepresented as: at least one parameter in the N first parameter sets isdifferent.

In one embodiment of the present disclosure, the indication signalingmay include one first downlink signaling. The one first downlinksignaling is used for indicating N first parameter sets and/or secondparameter sets determined for the N resource groups.

It is to be noted that the N second parameter sets at least includeparameter information of N quasi-co-location NZP CSI-RSs correspondingto the N resource groups and/or parameter information of N CRSs. Thatis, one QCL parameter set has N sets of CRS parameter sets and/or N setsof CSI-RS parameter sets. One CRS parameter set of the N sets of CRSparameter sets corresponds to CRS parameters of resource group 1 toresource group N. One CSI-RS parameter set of the N sets of CSI-RSparameter sets corresponds to CSI-RS parameters of the resource group 1to resource group N.

In this embodiment, CSI-RS and/or CRS parameters are added in the QCLparameter sets, so that N different parameter sets can be indicatedusing one first downlink signaling.

In one embodiment of the present disclosure, the indication signalingmay include one first downlink signaling and N−1 second downlinksignalings. The one first downlink signaling is used for indicating onefirst parameter set and/or second parameter set of N first parametersets and/or second parameter sets determined for the N resource groups.One of the N−1 second downlink signalings is used for indicating the onefirst parameter set and/or second parameter set of the N first parametersets and/or second parameter sets determined for the N resource groups.

It is to be noted that the one first downlink signaling may be a PQI ora high layer signaling, but is not limited thereto. The N−1 seconddownlink signalings may also be PQIs or high layer signalings, but mayalso be other downlink signalings, and are not limited thereto.

In the above-mentioned embodiment, N−1 second downlink signalings areprovided in addition to the one first downlink signaling to indicateparameter sets corresponding to different resource groups together, theperformance of the joint transmission is improved.

In one embodiment, the signaling transmission device in the above stepsmay be disposed in the terminal, but is not limited to a mobile terminaland a computer terminal, such as a data card, a mobile phone, a tabletcomputer, a laptop a personal computer, a tablet, a personal digitalassistant, a Bluetooth and other various receiving devices.

It is to be noted that the various modules described above may beimplemented by software or hardware. Implementation by hardware may, butmay not necessarily, be performed by the following method: the variousmodules described above are located in a same processor or theirrespective processors in any combination.

Embodiment Three

A network-side device is further provided in this embodiment, includingthe signaling transmitting device as shown in FIG. 4. The network-sidedevice may be a transmission node or a base station. The transmissionnode or the base station includes, tut is not limited to: a basestation, a macro base station, a micro base station, a small home basestation, a wireless hotspot, a wireless remote and a relay.

A terminal is further provided in this embodiment, including thesignaling transmitting device as shown in FIG. 5. The terminal is notlimited to a mobile terminal and a computer terminal.

For the signaling transmitting device shown in FIGS. 4 and 5, referencemay be made to the description shown in the embodiment two, repetitionwill not be made in this embodiment.

Embodiment Four

A storage medium is further provided in an embodiment of the presentdisclosure. In this embodiment, the storage medium may be configured tostore program codes for executing the steps of the signalingtransmitting method in the embodiment one.

In one embodiment, in this embodiment, the storage medium may include,but is not limited to, a flash disk, a read-only memory (ROM), a randomaccess memory (RAM), a mobile hard disk, a magnetic disk, an opticaldisk or another medium capable of storing program codes.

In one embodiment, for specific examples in this embodiment, referencemay be made to the examples described in the above embodiments andoptional implementation modes, and repetition will not be made in thisembodiment.

Apparently, those skilled in the art should understand that each of theabove-mentioned modules or steps of the present disclosure may beimplemented by a general-purpose computing apparatus, the modules orsteps may be concentrated on a single computing apparatus or distributedon a network formed by multiple computing apparatuses, and optionally,the modules or steps may be implemented by program codes executable bythe computing apparatuses, so that modules or steps may be stored in astorage apparatus and executed by the computing apparatuses. In somecircumstances, the illustrated or described steps may be executed insequences different from those described herein, or the modules or stepsmay be made into various integrated circuit modules separately, ormultiple modules or steps therein may be made into a single integratedcircuit module for implementation. In this way, the present disclosureis not limited to any specific combination of hardware and software.

The above are only preferred embodiments of the present disclosure andare not intended to limit the present disclosure, and for those skilledin the art, the present disclosure may have various modifications andvariations. Any modifications, equivalent substitutions, improvementsand the like made within the spirit and principle of the presentdisclosure are within the scope of the present disclosure.

INDUSTRIAL APPLICABILITY

According to the present disclosure, a first parameter set and/or asecond parameter set is determined for N resource groups and then istransmitted to the terminal through indication signaling; where N is apositive integer greater than 1, the first parameter set is a PDSCH REmapping set and the second parameter set is a QCL parameter set. Thiscan improve the performance of the joint transmission.

1. A signaling transmitting method, comprising determining a firstparameter set and/or a second parameter set for N resource groups,wherein N is a positive integer greater than 1, the first parameter setis a Physical Downlink Shared Channel Resource Element (PDSCH RE)mapping set, the second parameter set is a Quasi-Co-Location (QCL)parameter set; and transmitting an indication signaling, wherein theindication signaling carries indication information for indicating thefirst parameter set and/or the second parameter set.
 2. The methodaccording to claim 1, wherein the N resource groups are obtained bydividing according to at least one of the following resources: atransmission block, a codeword, a de-Modulation Reference Signal (DMRS)port group, a transport layer group and frequency domain locationinformation.
 3. The method according to claim 2, wherein onetransmission block corresponds to one resource group of the N resourcegroups, or one codeword corresponds to one resource group of the Nresource groups, or one DMRS port group corresponds to one resourcegroup of the N resource groups, or one transport layer group correspondsto one resource group of the N resource groups or one piece of frequencydomain location information corresponds to one resource group of the Nresource groups.
 4. The method according to claim 1, wherein eachresource group of the N resource groups corresponds to one firstparameter set and/or second parameter set.
 5. The method according toclaim 2, wherein the DMRS port group comprises one or more DMRS ports;the frequency domain location information comprises at least one ofresource block (RB) set information or sub-band set information.
 6. Themethod according to claim 1, wherein the indication signaling comprisesN first downlink signalings, wherein the N first downlink signalings areused for indicating N first parameter sets and/or second parameter setsdetermined for the N resource groups respectively, or, the indicationsignaling comprises one first downlink signaling; wherein the firstdownlink signaling is used for indicating N first parameter sets and/orsecond parameter sets determined for the N resource groups, or, theindication signaling comprises one first downlink signaling and N−1second downlink signalings; wherein the one first downlink signaling isused for indicating one first parameter set and/or second parameter setof N first parameter sets and/or second parameter sets determined forthe N resource groups, each of the N−1 second downlink signalings isused to indicating one first parameter set or second parameter set ofthe N first parameter sets and/or second parameter sets determined forthe N resource groups.
 7. The method according to claim 1, wherein whenthe N first parameter sets and the N second parameter sets aredetermined for the N resource groups, the N first parameter sets aresame.
 8. The method according to claim 1, wherein when the N firstparameter sets and the N second parameter sets are determined for the Nresource groups, the N second parameter sets are same.
 9. (canceled) 10.(canceled)
 11. The method according to claim 6, wherein the firstdownlink signaling comprises at least one signaling of a groupconsisting of: a high-layer signaling, a PDSCH RE mapping set andQuasi-Co-Location Indicator (PQI) signaling.
 12. A signaling receivingmethod, comprising receiving an indication signaling transmitted by anetwork-side device; wherein the indication signaling carries indicationinformation for indicating a first parameter set and/or a secondparameter set determined by the network-side device for N resourcegroups, the first parameter set is a Physical Downlink Shared ChannelResource Element (PDSCH RE) mapping set, the second parameter set is aQuasi-Co-Location (QCL) parameter set; and N is a positive integergreater than
 1. 13. The method according to claim 12, wherein the Nresource groups are obtained by dividing according to at least one ofthe following resources: a transmission block, a codeword, ade-Modulation Reference Signal (DMRS) port group, a transport layergroup and frequency domain location information.
 14. The methodaccording to claim 13, wherein one transmission block corresponds to oneresource group of the N resource groups, or one codeword corresponds toone resource group of the N resource groups, or one DMRS port groupcorresponds to one resource group of the N resource groups, or onetransport layer group corresponds to one resource group of the Nresource groups or one piece of frequency domain location informationcorresponds to one resource group of the N resource groups.
 15. Themethod according to claim 12, wherein each resource group of the Nresource groups corresponds to one first parameter set and/or secondparameter set.
 16. The method according to claim 13, wherein the DMRSport group comprises one or more DMRS ports; the frequency domainlocation information comprises at least one of: resource block (RB) setinformation or sub-band set information.
 17. The method according toclaim 12, wherein the indication signaling comprises N first downlinksignalings, wherein the N first downlink signalings are used forindicating N first parameter sets and/or the second parameter setsdetermined for the N resource groups respectively, or, the indicationsignaling comprises one first downlink signaling; wherein the one firstdownlink signaling is used for indicating N first parameter sets and/orsecond parameter sets determined for the N resource groups, or, theindication signaling comprises one first downlink signaling and N−1second downlink signalings; wherein the one first downlink signaling isused for indicating one first parameter set and/or second parameter setof N first parameter sets and/or second parameter sets determined forthe N resource groups, each of the N−1 second downlink signalings isused to indicating the one first parameter set and/or second parameterset of the N first parameter sets and/or second parameter setsdetermined for the N resource groups.
 18. The method according to claim12, wherein when the N first parameter sets and the N second parametersets are determined for the N resource groups, the N first parametersets are same.
 19. The method according to claim 12, wherein when the Nfirst parameter sets and the N second parameter sets are determined forthe N resource groups, the N second parameter sets are same. 20.(canceled)
 21. (canceled)
 22. The method according to claim 17, whereinthe first downlink signaling comprises at least one signaling of a groupconsisting of: a high-layer signaling, a PDSCH RE mapping set andQuasi-Co-Location Indicator (PQI) signaling.
 23. A signalingtransmitting device, comprising: a processor; and a memory for storinginstructions executable by the processor, wherein the processor isconfigured to: determine a first parameter set and/or second parameterset for N resource groups, N is a positive integer greater than 1, thefirst parameter set is a Physical Downlink Shared Channel ResourceElement (PDSCH RE) mapping set, the second parameter set is aquasi-co-location (QCL) parameter set; and transmit an indicationsignaling, wherein the indication signaling carries indicationinformation for indicating the first parameter set and/or the secondparameter set.
 24. (canceled)
 25. (canceled)
 26. A signaling receivingdevice, comprising: a processor; and a memory for storing instructionsexecutable by the processor, wherein the processor is configured to:receive an indication signaling transmitted by a network-side device;wherein the indication signaling carries indication information forindicating a first parameter set and/or a second parameter setdetermined by the network-side device for N resource groups, the firstparameter set is a Physical Downlink Shared Channel Resource Element(PDSCH RE) mapping set, the second parameter set is a quasi-co-location(QCL) parameter set; and N is a positive integer greater than
 1. 27-31.(canceled)